BD138 PNP Power Transistor 60V 1.5A TO-126
The BD138 is a robust PNP silicon epitaxial planar bipolar junction transistor (BJT) designed for medium-power linear and switching applications. It is housed in a standard TO-126 through-hole plastic package that supports reliable thermal performance and ease of handling in prototypes and production circuits. The device features a maximum collector-emitter voltage of 60 V, continuous collector current of 1.5 A, and moderate power dissipation, making it suitable for general amplifier, driver, and switching applications.
Features:
- PNP epitaxial silicon construction for high reliability.
- Medium power handling with 1.5A continuous collector current.
- Low collector-emitter saturation voltage for efficient switching.
- Wide DC current gain (hFE) range from 40 to 250.
Specifications:
| Parameter | Value |
|---|---|
| Collector-Base Voltage (VCBO) | -60V |
| Collector-Emitter Voltage (VCEO) | -60V |
| Emitter-Base Voltage (VEBO) | -5V |
| Collector Current (IC, Continuous) | -1.5A |
| Collector Current (IC, Pulsed) | -3A |
| Base Current (IB) | -0.5A |
| Power Dissipation (PC at TC=25°C) | 12.5W |
| Power Dissipation (PC at TA=25°C) | 1.25W |
| DC Current Gain (hFE at IC=-150mA, VCE=-2V) | 40 to 250 |
| Collector-Emitter Saturation Voltage (VCE(sat) at IC=-500mA, IB=-50mA) | -0.5V |
| Base-Emitter On Voltage (VBE(on) at IC=-500mA, VCE=-2V) | -1V |
| Operating Junction Temperature (TJ) | -55°C to 150°C |
| Package Type | TO-126 |
| Mounting Type | Through Hole |
Pin Configuration:
Applications:
- Driver stages in hi-fi audio amplifiers.
- Medium power switching in power supplies.
- General-purpose amplification in consumer electronics.
- Complementary push-pull configurations with NPN transistors.
- Television circuit drivers and regulators.
- Linear voltage regulation in low-power systems.
Package Include:
- 1x BD138 PNP Power Transistor 60V 1.5A TO-126.
